function
air
ambient
background
black
branches
carbon
color
dioxide
energy
environment
exterior
flora
foliage
fresh
garden
green
greenery
ground
growing
growth
harmony
herbage
leafy
leaves
light
living
natural
nature
new
organ
outdoor
oxygen
plants
reborn
refresh
stems
stock
sun
sunlight
sunny
temperature
trees
vegetation
vivid
water
white
young
youth
youthful